Peter Gyori created NIFI-8763:
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Summary: Hide some properties in CSVReader when built-in CSV
Format is selected
Key: NIFI-8763
URL: https://issues.apache.org/jira/browse/NIFI-8763
Project: Apache NiFi
Issue Type: Improvement
Components: Extensions
Reporter: Peter Gyori
In CSVReader controller service, the value of the CSV Format property can
either be 'Custom Format' or some built-in format with predefined parameters
(RFC 4180, Microsoft Excel, etc.). When 'Custom Format' is selected, the
user-defined (or default) values of other properties, like 'Value Separator',
'Record Separator', 'Escape Character', etc. are used. However, when one of the
built-in formats is used, the user-defined (or default) values of these
properties are ignored and the format-specific settings are used (e.g. with RFC
4180, the delimiter is the comma, and the escape character is not set) yet, the
user can still manipulate the values of these properties of the controller
service but they will be ignored which might lead to confusion. It would make
sense to hide the properties that cannot be overridden when a built-in format
is selected.
Also, the settings of the built-in formats do not appear in the NiFi
documentation. The built-in formats come from a 3rd party library
org.apache.commons.csv.CSVFormat (in case of the Apache Commons parser). It
would be useful to add the link to the CSVReader documentation that points to
these settings.
[https://commons.apache.org/proper/commons-csv/apidocs/org/apache/commons/csv/CSVFormat.html]
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